2) Thermal Composter:

Thermal composting, more commonly known as thermophilic composting, requires a precise volume and mix of materials to create conditions in which bacteria bring the temperature in the compost pile to 130 to 160 degrees Fahrenheit.

3) Rotationary Composter:

A Rotationary Composter is a fully sealed container which can be rotated to mix the composting materials. The sealed container also helps contain the heat generated by the composting process, thereby speeding the process of converting kitchen and yard waste into compost. Compost tumblers were invented to make composting simpler and faster.